[Eratosthenes (Peter)]

The GUT (10^-43 to 10^-38 sec) and Electroweak (10^-38 to 10^-12 sec) eras followed the Planck era (0 to 10^-43).

The recent discovery of the Higgs Boson supports a cosmological model which includes the GUT era followed by the Electroweak era.

When the GUT era ended the strong force separated from the other forces. This decoupling event resulted in a huge release of energy which cause the of "inflation" period. Just to put "inflation" in perspective, the Universe actually expanded by a factor of 1035 in only 10-32 seconds.The Universe exploded from the size of a single electron to the size of a table tennis ball in only 10^-32 seconds. (that's the theory anyway)

There are many unanswered questions about the early Post Planck eras let alone what happened prior to 10^-43 seconds - where there is absence of any Physical theory or observation.

Even though Inflation theory does help explain both the Horizon Problem and the Flatness problem, its by no means settled. (Physicists dont even understand what the bulk of the Universe is made up of with modest understanding of the Baryonic matter that makes up our reality - whatever that it. I would prefer to give Physicists and philosophers another 20 or 30 thousand years of hard work and serious thought - maybe more. Imagine how long Chemists will need to sort things out, a discipline which is more complex than Physics. Biology more complex than Chemistry and then we have psychology)